Skylight-frame



(No. Model.)

Y J L. 00X.

SKYLIGHT, FRAME.

No. 272.859. Patented Feb.2"7. 1883.

m'ineases:

N. PETERS. Halo-Lithographer. Wauhinghn no.

UNITED STATES PATENT OFFICE.

JOSEPH L. COX, OF MILWAUKEE, WISCONSIN.

SKYLIGHT-FRAME.

SPECIFICATION forming part of Letters Patent No. 272,859, dated February 27, 1883.

Application filed May 27, 1882. (No model.)

To all whom it may concern:

Beit known that I, JOSEPH L. 00X, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Skylight-Frames; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Myinvention relates to improvements in skylight-frames, and pertains to that class the bars of which are constructed of sheet metal.

The object of my improvements is to reduce the number of pieces of metal used, to attain greater strength, and to provide a bar which may be curved without disarranging the parts.

My invention is further explained by reference to the accompanying drawings.

Figure 1 represents a side view of the bar as it appears when curved. Fig. 2 represents a cross-section of the bars, showing the manner of folding the metal to form the same.

Like parts are represented by the same reference-letters in both views.

A is the cap. B is the supporting-bar. The cap and bar are respectively formed of a single piece of metal. The baris formed by folding the sheets as shown, commencing at the respective edges 0 O. The respective sides of the sheet extend downward to I), then fold upward, downward, and upward again, as shown, thus forming four parallel central folds extending across the entire width of the bar. The respective sides of the sheet are curved outward and then inward, forming the flanges E E for retaining the. cap. The plates are then continued downward to F, then outward, forming the supporting-shoulders G G, then inward to the central folds, then downward below the lower edges of said central folds. They are then curved outward and upward, forming the troughs H H upon the respective sides of the center. From thence the sheetexclaim as new, and desire tends downward and inward, thus bringing 'its center beneath the central bar, as shown.

When thus folded the upper edge of the baris secured together by rivets I.

In forming the cap A, preparatory to attaching it to the bar, the apex of the anglesJ J are left apart from each other far enough to pass over to flanges E E, when they are drawn firmly together upon the respective sides of the flanges E E.

It is obvious that the central bar may becomposed of a greater or less number of folds, according to the strength required.

When desirous to curve the bar its upward edges are pressed between rollers, and thereby s0 expanded that the bar is curved thereby, as shown in Fig. 1, which object is more perfectly accomplished than when the bar is formed of several pieces instead of a single piece.

Having thus described my invention, what I to secure by Letters Patent, is- I 1. In a skylight-frame, the bar B, formed of two or more folds of sheet metal extending from the cap to the trough beneath, and having flanges E E, shoulders G G, and troughs E El, said bar, flanges,.supporting-shoulders, and troughs being formed in a single piece, substantially as shown.

2. A skylight-bar formed of a single sheet of metal, having the parts upon the respective sides of the center shaped to form the troughs H H, supporting-shoulders G G, and flanges E E, the remainder of the sheet being folded together to form the central bar, B, substantially as shown.

3. The combination of the peculiar-shaped bar herein described with the cap A, having angular projections J J beneath the flanges E E, as adapted to retain said cap upon said bar, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH L. 00X.

Witnesses:

JAS. B. ERWIN, E. G. ASMETS. 

